# Issun: One-Inch Hero — A tiny-hero idle RPG

> A tiny-hero idle RPG (iPhone/iPad app by Daisaku Seto.)

- Source: https://appshunter.io/ios/app/issun-one-inch-hero/id6821778220 (this page in markdown: same URL + `.md`)
- Developer: [Daisaku Seto](https://appshunter.io/developer/1889853807)
- Category: Games, Entertainment, Casual, Role Playing
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 15 MB
- Languages: American English, Japanese, Chinese (Simplified, China)
- Released: 2026-10-15
- Data updated: 2026-10-19

## What is Issun?

A thumb-sized hero sets out with a single sewing needle. Issun-Yusha is a gentle idle RPG: send your hero off, and wait for his return.

No tricky controls. Send the hero to an area, and the adventure unfolds in real time. When he comes home, collect loot and experience. If he falls, you lose no gear and no gold — only time. So you can try again, as many times as you like.

[A papercraft world]
Hand-drawn in watercolor and paper cutouts, from a humble garden to the ogres' capital. Meet insects and little creatures, and fill your field guide and keepsake shelf.

[At your own pace]
Earn safely in the shallows, train in the mid-depths, or dive deep to conquer. Choose your depth and length. Offer spare gold at the roadside shrine for a little luck.

[The spirit of Issun-boshi]
Gear is everyday objects reimagined — a needle becomes a sword, a bowl becomes a boat. Clear every area to unlock legendary gear like the Magic Mallet.

[Free to the end]
All 84 areas are playable to the finish for free. No ads, no gacha.

[Pro (one-time ¥200)]
For a smoother ride: auto-expeditions (send off up to 12 hours at once), fight alongside a companion (puppy, kitten and more), hero outfits, paper backgrounds, and custom names for your hero and companions. The whole game stays free either way.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| One-Inch Hero Pro | $0.99 | one-time |


## Is Issun safe?

Not enough ratings yet to assess Issun.

## Is Issun legit?

Issun: One-Inch Hero appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Issun is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-15

No release notes.

## More apps by Daisaku Seto

- [Tone Craft - Brass Practice](https://appshunter.io/ios/app/tone-craft-brass-practice/id6761473626)
- [ScoreLibrary](https://appshunter.io/ios/app/scorelibrary/id6761536209)
- [World Prism](https://appshunter.io/ios/app/world-prism/id6761618784)
- [SokuraChat](https://appshunter.io/ios/app/sokurachat/id6761684130)
- [SAPIENTIA Research](https://appshunter.io/ios/app/sapientia-research/id6761721069)
- [Attenai](https://appshunter.io/ios/app/attenai/id6762042775)

All apps by Daisaku Seto: https://appshunter.io/developer/1889853807

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-19.*